forked from mirror/afero
475 lines
10 KiB
Go
475 lines
10 KiB
Go
package afero
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"runtime"
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"testing"
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"time"
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)
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func TestNormalizePath(t *testing.T) {
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type test struct {
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input string
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expected string
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}
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data := []test{
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{".", FilePathSeparator},
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{"./", FilePathSeparator},
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{"..", FilePathSeparator},
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{"../", FilePathSeparator},
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{"./..", FilePathSeparator},
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{"./../", FilePathSeparator},
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}
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for i, d := range data {
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cpath := normalizePath(d.input)
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if d.expected != cpath {
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t.Errorf("Test %d failed. Expected %q got %q", i, d.expected, cpath)
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}
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}
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}
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func TestPathErrors(t *testing.T) {
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path := filepath.Join(".", "some", "path")
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path2 := filepath.Join(".", "different", "path")
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fs := NewMemMapFs()
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perm := os.FileMode(0755)
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// relevant functions:
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// func (m *MemMapFs) Chmod(name string, mode os.FileMode) error
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// func (m *MemMapFs) Chtimes(name string, atime time.Time, mtime time.Time) error
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// func (m *MemMapFs) Create(name string) (File, error)
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// func (m *MemMapFs) Mkdir(name string, perm os.FileMode) error
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// func (m *MemMapFs) MkdirAll(path string, perm os.FileMode) error
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// func (m *MemMapFs) Open(name string) (File, error)
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// func (m *MemMapFs) OpenFile(name string, flag int, perm os.FileMode) (File, error)
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// func (m *MemMapFs) Remove(name string) error
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// func (m *MemMapFs) Rename(oldname, newname string) error
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// func (m *MemMapFs) Stat(name string) (os.FileInfo, error)
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err := fs.Chmod(path, perm)
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checkPathError(t, err, "Chmod")
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err = fs.Chtimes(path, time.Now(), time.Now())
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checkPathError(t, err, "Chtimes")
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// fs.Create doesn't return an error
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err = fs.Mkdir(path2, perm)
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if err != nil {
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t.Error(err)
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}
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err = fs.Mkdir(path2, perm)
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checkPathError(t, err, "Mkdir")
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err = fs.MkdirAll(path2, perm)
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if err != nil {
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t.Error("MkdirAll:", err)
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}
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_, err = fs.Open(path)
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checkPathError(t, err, "Open")
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_, err = fs.OpenFile(path, os.O_RDWR, perm)
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checkPathError(t, err, "OpenFile")
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err = fs.Remove(path)
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checkPathError(t, err, "Remove")
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err = fs.RemoveAll(path)
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if err != nil {
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t.Error("RemoveAll:", err)
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}
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err = fs.Rename(path, path2)
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checkPathError(t, err, "Rename")
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_, err = fs.Stat(path)
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checkPathError(t, err, "Stat")
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}
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func checkPathError(t *testing.T, err error, op string) {
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pathErr, ok := err.(*os.PathError)
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if !ok {
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t.Error(op+":", err, "is not a os.PathError")
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return
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}
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_, ok = pathErr.Err.(*os.PathError)
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if ok {
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t.Error(op+":", err, "contains another os.PathError")
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}
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}
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// Ensure os.O_EXCL is correctly handled.
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func TestOpenFileExcl(t *testing.T) {
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const fileName = "/myFileTest"
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const fileMode = os.FileMode(0765)
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fs := NewMemMapFs()
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// First creation should succeed.
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f, err := fs.OpenFile(fileName, os.O_CREATE|os.O_EXCL, fileMode)
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if err != nil {
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t.Errorf("OpenFile Create Excl failed: %s", err)
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return
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}
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f.Close()
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// Second creation should fail.
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_, err = fs.OpenFile(fileName, os.O_CREATE|os.O_EXCL, fileMode)
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if err == nil {
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t.Errorf("OpenFile Create Excl should have failed, but it didn't")
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}
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checkPathError(t, err, "Open")
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}
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// Ensure Permissions are set on OpenFile/Mkdir/MkdirAll
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func TestPermSet(t *testing.T) {
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const fileName = "/myFileTest"
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const dirPath = "/myDirTest"
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const dirPathAll = "/my/path/to/dir"
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const fileMode = os.FileMode(0765)
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// directories will also have the directory bit set
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const dirMode = fileMode | os.ModeDir
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fs := NewMemMapFs()
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// Test Openfile
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f, err := fs.OpenFile(fileName, os.O_CREATE, fileMode)
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if err != nil {
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t.Errorf("OpenFile Create failed: %s", err)
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return
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}
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f.Close()
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s, err := fs.Stat(fileName)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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if s.Mode().String() != fileMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), fileMode.String())
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return
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}
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// Test Mkdir
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err = fs.Mkdir(dirPath, dirMode)
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if err != nil {
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t.Errorf("MkDir Create failed: %s", err)
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return
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}
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s, err = fs.Stat(dirPath)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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// sets File
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if s.Mode().String() != dirMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), dirMode.String())
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return
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}
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// Test MkdirAll
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err = fs.MkdirAll(dirPathAll, dirMode)
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if err != nil {
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t.Errorf("MkDir Create failed: %s", err)
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return
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}
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s, err = fs.Stat(dirPathAll)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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if s.Mode().String() != dirMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), dirMode.String())
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return
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}
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}
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// Fails if multiple file objects use the same file.at counter in MemMapFs
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func TestMultipleOpenFiles(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo2.txt"
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var data = make([][]byte, len(Fss))
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for i, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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fh1, err := fs.Create(path)
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if err != nil {
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t.Error("fs.Create failed: " + err.Error())
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}
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_, err = fh1.Write([]byte("test"))
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if err != nil {
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t.Error("fh.Write failed: " + err.Error())
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}
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_, err = fh1.Seek(0, os.SEEK_SET)
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if err != nil {
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t.Error(err)
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}
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fh2, err := fs.OpenFile(path, os.O_RDWR, 0777)
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if err != nil {
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t.Error("fs.OpenFile failed: " + err.Error())
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}
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_, err = fh2.Seek(0, os.SEEK_END)
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if err != nil {
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t.Error(err)
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}
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_, err = fh2.Write([]byte("data"))
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if err != nil {
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t.Error(err)
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}
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err = fh2.Close()
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if err != nil {
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t.Error(err)
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}
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_, err = fh1.Write([]byte("data"))
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if err != nil {
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t.Error(err)
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}
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err = fh1.Close()
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if err != nil {
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t.Error(err)
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}
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// the file now should contain "datadata"
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data[i], err = ReadFile(fs, path)
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if err != nil {
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t.Error(err)
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}
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}
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for i, fs := range Fss {
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if i == 0 {
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continue
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}
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if string(data[0]) != string(data[i]) {
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t.Errorf("%s and %s don't behave the same\n"+
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"%s: \"%s\"\n%s: \"%s\"\n",
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Fss[0].Name(), fs.Name(), Fss[0].Name(), data[0], fs.Name(), data[i])
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}
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}
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}
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// Test if file.Write() fails when opened as read only
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func TestReadOnly(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo.txt"
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for _, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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f, err := fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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_, err = f.Write([]byte("test"))
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if err != nil {
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t.Error(fs.Name()+":", "Write failed: "+err.Error())
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}
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f.Close()
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f, err = fs.Open(path)
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if err != nil {
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t.Error("fs.Open failed: " + err.Error())
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}
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_, err = f.Write([]byte("data"))
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if err == nil {
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t.Error(fs.Name()+":", "No write error")
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}
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f.Close()
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f, err = fs.OpenFile(path, os.O_RDONLY, 0644)
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if err != nil {
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t.Error("fs.Open failed: " + err.Error())
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}
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_, err = f.Write([]byte("data"))
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if err == nil {
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t.Error(fs.Name()+":", "No write error")
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}
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f.Close()
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}
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}
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func TestWriteCloseTime(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo.txt"
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for _, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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f, err := fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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f.Close()
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f, err = fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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fi, err := f.Stat()
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if err != nil {
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t.Error(fs.Name()+":", "Stat failed: "+err.Error())
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}
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timeBefore := fi.ModTime()
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// sorry for the delay, but we have to make sure time advances,
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// also on non Un*x systems...
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switch runtime.GOOS {
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case "windows":
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time.Sleep(2 * time.Second)
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case "darwin":
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time.Sleep(1 * time.Second)
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default: // depending on the FS, this may work with < 1 second, on my old ext3 it does not
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time.Sleep(1 * time.Second)
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}
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_, err = f.Write([]byte("test"))
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if err != nil {
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t.Error(fs.Name()+":", "Write failed: "+err.Error())
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}
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f.Close()
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fi, err = fs.Stat(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Stat failed: "+err.Error())
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}
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if fi.ModTime().Equal(timeBefore) {
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t.Error(fs.Name()+":", "ModTime was not set on Close()")
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}
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}
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}
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// This test should be run with the race detector on:
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// go test -race -v -timeout 10s -run TestRacingDeleteAndClose
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func TestRacingDeleteAndClose(t *testing.T) {
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fs := NewMemMapFs()
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pathname := "testfile"
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f, err := fs.Create(pathname)
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if err != nil {
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t.Fatal(err)
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}
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in := make(chan bool)
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go func() {
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<-in
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f.Close()
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}()
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go func() {
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<-in
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fs.Remove(pathname)
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}()
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close(in)
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}
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// This test should be run with the race detector on:
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// go test -run TestMemFsDataRace -race
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func TestMemFsDataRace(t *testing.T) {
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const dir = "test_dir"
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fs := NewMemMapFs()
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if err := fs.MkdirAll(dir, 0777); err != nil {
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t.Fatal(err)
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}
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const n = 1000
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done := make(chan struct{})
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go func() {
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defer close(done)
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for i := 0; i < n; i++ {
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fname := filepath.Join(dir, fmt.Sprintf("%d.txt", i))
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if err := WriteFile(fs, fname, []byte(""), 0777); err != nil {
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panic(err)
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}
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if err := fs.Remove(fname); err != nil {
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panic(err)
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}
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}
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}()
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loop:
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for {
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select {
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case <-done:
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break loop
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default:
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_, err := ReadDir(fs, dir)
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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}
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func TestMemFsDirMode(t *testing.T) {
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fs := NewMemMapFs()
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err := fs.Mkdir("/testDir1", 0644)
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if err != nil {
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t.Error(err)
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}
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err = fs.MkdirAll("/sub/testDir2", 0644)
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if err != nil {
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t.Error(err)
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}
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info, err := fs.Stat("/testDir1")
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if err != nil {
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t.Error(err)
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}
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if !info.IsDir() {
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t.Error("should be a directory")
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}
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if !info.Mode().IsDir() {
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t.Error("FileMode is not directory")
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}
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info, err = fs.Stat("/sub/testDir2")
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if err != nil {
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t.Error(err)
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}
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if !info.IsDir() {
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t.Error("should be a directory")
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}
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if !info.Mode().IsDir() {
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t.Error("FileMode is not directory")
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}
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}
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func TestMemFsUnexpectedEOF(t *testing.T) {
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t.Parallel()
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fs := NewMemMapFs()
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if err := WriteFile(fs, "file.txt", []byte("abc"), 0777); err != nil {
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t.Fatal(err)
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}
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f, err := fs.Open("file.txt")
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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// Seek beyond the end.
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_, err = f.Seek(512, 0)
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if err != nil {
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t.Fatal(err)
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}
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buff := make([]byte, 256)
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_, err = io.ReadAtLeast(f, buff, 256)
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if err != io.ErrUnexpectedEOF {
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t.Fatal("Expected ErrUnexpectedEOF")
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}
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}
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